Regulating device for internal-combustion engines.



No. 728,297. PATENTED MAY 19, 1903. P. REIGHENBAGH.

REGULATING DEVICE FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED NOV. 26, 1902.

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PATENTED MAY 19, 1903. F. RBIOHBNBACH. REGULATING DEVICE FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED NOV. 28, 1902.

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H0 IODEL WITNESSES ALATTORNVEYS UNITED STATEs Iatented May 19, 1903.

FRITZ REIOHENBAOII, BERLIN, GERMANY.

REGULATING DEVICE FOR INTERNAL-COMBUSTION ENGINES.

SPECIFICATION forming part of Letters Patent No. 728,297, dated May 19, 1903. Application filed November 26, 1902. Serial No. 132,901- ilio modelj To all whom it may concern.-

Be it known that I, FRITZ REICHENBACH, civil engineer, a subject of the King of Prussia, German Emperor, residing at Berlin, in the Kingdom of Prussia, German Empire, have invented a new and useful Regulating Device for Internal-Combustion Engines, of which the following is a specification.

The main object of this invention is to provide an improved regulating device for internal-combustion engines whereby the time of ignition is varied by means of regulators or governors responding to variations in speed and to different loads.

Other and equally-important objects will appear hereinafter.

In order to make my invention more clear, I refer to the accompanying drawings, in which similar letters denote similar parts throughout the several views, and in which- Figure 1 is a diagrammatical representation of one form of construction of my improved regulating device, some parts being shown in section; and Fig. 2 is a cross-section in line 3 4 of Fig. 1. Fig. 3 is a plan view of an engine with my regulating device applied thereto; Fig. 4:, a detail sectional view taken on the line 4 4: of Fig. 3.

My improved regulating device comprises two regulators a b, fixed to a shaft 0. The bell-crank levers a of the regulator or are connected with a sleeve (1 forming an, elongation of a cylinder d, adapted to be displaced lengthwise on the shaft 0. The bell-crank levers Z) of the regulator b are connected with a sleeve d which in its turn is connected by a rod 6 with a lever f, located in front of the cylinder 61. The latter has on its circumferential surface an oblique ledge 61, which cooperates with a projection f of the lever f.

The point of contact of the parts d and f" forms part ofan electric circuit containing the igniting device (1 for the explosive mixture. The position of that point of contact changes according to the changes in the positions of the cylinder d and the leverf.

Between the lever f and the sleeve d is a hand-lever g, fnlcrumed at g and connected with a ring it, embracing the shaft a, the connection being such that the rotation of the ring h with the shaft to is not impeded. Another ring 71 is secured to the cylinder (Z, and

' hundred and ten.

a spring is is intercalated between the two rings h and t'. The normal tension of the spring k may be increased by moving the lever 9 from the position shown in full lines to that shown in dotted lines in Fig. '1. The cylinder 01 cannot give way to the pressure of the spring7c,because a key mis passed through the shaft a at the free end of the sleeve (1 The forward end of the cylinder 6 contacts with the upper end of the lever '21. The lower end of this lever isconnected, by means of the rod 0, to the mixture-inlet valve 12 of the engine. A spring q normally holds the inlet-valve open, and the outward movement of the cylinder cZ-moves the lever 71 and closes the valve 1) against the tension of the spring q. By means of the lever q the pressure of-the spring 75 against the forward end of the cylinder cl may be varied as desired. As long as the lever g is in the position shown in full lines the tension of spring is but low, so that the regulator (which at the same time eifects the throttling of the explosive mixture) is capable of displacing the cylinder d to the right as soon as the number of rotations is about one hundred or one Owing to that displacement, the point of contact between d and f is changed in sucha way that the ignition of the explosive mixture occurs too early, in consequence of which the power of the engine is correspondingly diminished. Supposing the n u mber of revolutions of the engine shall be about one thousand per minute, the lever g is moved to the left, (see the position shown in dotted lines,) so that the tension of the spring 7.: is correspondingly increased. This increase is such that a speed of one thousand revolutions of the regulator or is required to displace the cylinder d. lu this case the explosive mixture would be ignited too late if the position ofthe projection f would remain the same as it was when one hundred revolutions had been made. For this reason the projection f is connected with the regulator Z), so that it can be displaced by the same as the speed increases. The regulator b is independent of the regulator Ct.

It will thus be seen that the governor a may be set by means of the lever g and spring 70 to operate to shift the cylinder d, and thereby still further vary the point of ignition and reduce the supply of mixture to the engine' when a certain speed of rotation is reached. It will also be understood that the governor 1) acts independently of the governor a and varies the point of ignition as the speed of the engine varies.

Having now described my invention, What I desire to secure by Letters Patent of the United States is-- 1. In a regulating device for internal-combustion engines, the combination of means for varying the charge, means for changing the time of ignition of the charge, a speedregulator adapted to simultaneously actuate both said means, a second regulator, and means for connecting said second regulator to the means for varying the time of ignition, whereby said second regulator will actuate solely the ignition-varying means independently of the regulator for varying the charge.

2. In a regulating device for internal-combustion engines, the combination with means for varying the charge, and with means for changing the time of ignition of the charge, of a regulator adapted to actuate both said' means; means for adjusting said regulator by hand; and another regulator adapted to actuate solely the means for varying the time of ignition, as set forth.

3. In a regulating device forinternal-combustion engines, the combination with means for varying the charge, of a regulator adapted to actuate said means; means for adj usting said regulator by hand; two points of contact; a rotary cylinder having one of said points of contact attached to it; a lever having the other point of contact attached to it; means connecting said cylinderwith said regulator; and another regulator adapted to move said lever, as set forth.

4. In a regulating device for internal-combustion engines, the combination with means for varying the charge, of a regulator adapted to actuate said. means; means for adjusting said regulator by hand; a rotary cylinder adapted to be displaced lengthwise by said regulator; an oblique ledge upon the circumferential surface of said cylinder; a projection adapted to come in contact with said ledge during the rotation of said cylinder; a lever having said projection attached to it; and another regulator adapted to move said lever, as set forth.

5. Aregulatingdevicefor internal-combustion engines, the combination with means for varying the charge, of a speed governor adapted to actuate said means, a rotary cylinder connected to said speed-governor and adapted to be moved longitudinally thereby,a spring acting against the speed-governor, means for varying the pressure of said spring, a spiral rib or ledge carried by said cylinder, an electrical igniting device, one terminal of the igniting-circuit connected to said spiral rib, a movable contact in position to be engaged by the spiral rib as the cylinder rotates, the other terminal of the igniting-circuit being connected to said contact, a second speed-governor and means whereby said second speed-govern or will shift the movable contact.

6. In a regulating device for internal-combustion engines, the combination, of a shaft, a pair of speed-governors secured thereto, a cylinder rotatable with and slidable on said shaftnneans connecting one of said speed-governors to said cylinder to move said cylinder on the shaft,means actuated by the movement of said cyinder to vary the charge to tbeengine, a spirally-arranged contact-bar carried by the cylinder, one terminal of an igniting-circuit connected to said bar,a movable contact-point arranged to engage the contact-bar as the cylinder rotates, the other terminal of the ignitingcircuit connected to said movable contact-point, and means connecting the second speed-governor to the movable contact-point.

7. In a regulating device for internal-combustion engines, the combination of a shaft, a pair of speed-governors secured thereto, a cylinder rotatable with and slidable on said shaft, means connecting one of said speed-- governors to said cylinder to move said cylinder on the shaft, means actuated by the movement of said cylinder to vary the charge to the engine, a spirally-arranged contact-bar carried by the cylinder, one terminal of an igniting-circuit connected to said bar,a spring arranged to oppose the regulator connected to the cylinder, means for varying the action of said spring, a movable contact-point arranged to engage the contact-bar as the cylinder rotates, the other terminal of the igniting-circuit connected to said movable contact-point, and means connecting the second speed-governor to the movable contact-point.

In witness whereof I have hereunto set my hand in presence of two witnesses.

FRITZ RElGHENBAOI-I. Witnesses:

HENRY HAsPER, WOLDEMAR I'IAUPT. 

